D. K Vani, and A.K. Kurchania. “Research Note Bio-Methanation of Anaerobic Fermentation of Undiluted Cattle Dung”. Journal of Agricultural Engineering (India) 44, no. 2 (June 30, 2007): 124–126. Accessed June 4, 2026. https://pub.isae.in/index.php/jae/article/view/3420.